2662440064 has 16 divisors (see below), whose sum is σ = 5304080070. Its totient is φ = 1331219968.

The previous prime is 2662440059. The next prime is 2662440119. The reversal of 2662440064 is 4600442662.

It can be written as a sum of positive squares in only one way, i.e., 2661734464 + 705600 = 51592^2 + 840^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10400029 + ... + 10400284.

Almost surely, 2^2662440064 is an apocalyptic number.

It is an amenable number.

2662440064 is a deficient number, since it is larger than the sum of its proper divisors (2641640006).

2662440064 is an equidigital number, since it uses as much as digits as its factorization.

2662440064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20800327 (or 20800315 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 2662440064 is about 51598.8378163695. The cubic root of 2662440064 is about 1385.9895206347.

The spelling of 2662440064 in words is "two billion, six hundred sixty-two million, four hundred forty thousand, sixty-four".